ATE256342T1 - PIEZOELECTRIC DRIVE - Google Patents

PIEZOELECTRIC DRIVE

Info

Publication number
ATE256342T1
ATE256342T1 AT98910831T AT98910831T ATE256342T1 AT E256342 T1 ATE256342 T1 AT E256342T1 AT 98910831 T AT98910831 T AT 98910831T AT 98910831 T AT98910831 T AT 98910831T AT E256342 T1 ATE256342 T1 AT E256342T1
Authority
AT
Austria
Prior art keywords
actuator
blade
piezoelectric drive
fixed
blades
Prior art date
Application number
AT98910831T
Other languages
German (de)
Inventor
Simon Powell
Original Assignee
Greenbrook Electrical Plc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Greenbrook Electrical Plc filed Critical Greenbrook Electrical Plc
Application granted granted Critical
Publication of ATE256342T1 publication Critical patent/ATE256342T1/en

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H10N30/204—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators using bending displacement, e.g. unimorph, bimorph or multimorph cantilever or membrane benders
    • H10N30/2041—Beam type
    • H10N30/2042—Cantilevers, i.e. having one fixed end
    • H10N30/2044—Cantilevers, i.e. having one fixed end having multiple segments mechanically connected in series, e.g. zig-zag type
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N30/00—Piezoelectric or electrostrictive devices
    • H10N30/20—Piezoelectric or electrostrictive devices with electrical input and mechanical output, e.g. functioning as actuators or vibrators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/127—Automatic release mechanisms with or without manual release using piezoelectric, electrostrictive or magnetostrictive trip units
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H57/00—Electrostrictive relays; Piezoelectric relays

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Micromachines (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

An electrically controlled actuator comprises at least two co-planar blades formed by a U-shaped pressing from a sheet of material. The end of one blade (60) is used as a mounting for the actuator and the end of the other blade (85) is used as an actuation surface. Piezo ceramic material is fixed to opposite surface of the two blades in order to flex the actuation surface with respect to the fixed surface. An electrically relay or residual current device incorporating such an actuator is disclosed.
AT98910831T 1997-03-07 1998-03-06 PIEZOELECTRIC DRIVE ATE256342T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9704769.0A GB9704769D0 (en) 1997-03-07 1997-03-07 Low component count release mechanism
PCT/GB1998/000670 WO1998040917A1 (en) 1997-03-07 1998-03-06 Low component count release mechanism

Publications (1)

Publication Number Publication Date
ATE256342T1 true ATE256342T1 (en) 2003-12-15

Family

ID=10808877

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98910831T ATE256342T1 (en) 1997-03-07 1998-03-06 PIEZOELECTRIC DRIVE

Country Status (14)

Country Link
US (1) US6323581B1 (en)
EP (1) EP0965147B1 (en)
JP (1) JP3204398B2 (en)
KR (1) KR100614854B1 (en)
CN (1) CN1223019C (en)
AT (1) ATE256342T1 (en)
AU (1) AU724314B2 (en)
CA (1) CA2283475C (en)
DE (1) DE69820420T2 (en)
ES (1) ES2212275T3 (en)
GB (1) GB9704769D0 (en)
HK (1) HK1026511A1 (en)
NZ (1) NZ337621A (en)
WO (1) WO1998040917A1 (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9811277D0 (en) * 1998-05-26 1998-07-22 Pbt Limited Piezo ceramic operated mechanism
GB9908927D0 (en) * 1999-04-19 1999-06-16 Pbt Limited Electrically actuated mechanical release mechanism
GB9908930D0 (en) * 1999-04-19 1999-06-16 Pbt Limited Active material low power electrical switching mechanism
WO2000063939A1 (en) * 1999-04-19 2000-10-26 Pbt (Ip) Limited Integrated electrically actuated mechanical release mechanism
IT1314357B1 (en) * 1999-12-31 2002-12-09 Abb Ricerca Spa LOW VOLTAGE POWER SWITCH WITH IMPROVED FUNCTIONALITY
US6642832B2 (en) * 2000-12-08 2003-11-04 Texas Instruments Incorporated ARC responsive thermal circuit breaker
GB0113350D0 (en) * 2001-06-01 2001-07-25 Pbt Ip Ltd A rotary actuator mechanism
GB0203897D0 (en) * 2002-02-19 2002-04-03 Pbt Ip Ltd Low cost actuator with 2 dimensional motion
EP1597644A1 (en) * 2003-02-28 2005-11-23 PBT (IP) Limited Method and apparatus for electrically controlling the stroke of a mechanical member
GB0321439D0 (en) * 2003-09-12 2003-10-15 Pbt Ip Ltd Locking mechanism
US7157831B2 (en) * 2004-09-30 2007-01-02 Quality Research, Development & Consulting, Inc. Energy efficient vibration driven motor
FR2884962A1 (en) * 2005-04-22 2006-10-27 Norbert Roger Beyrard CONTACTOR CIRCUIT BREAKER OPENED BY TRIGGERING USING A PIEZO ELECTRIC ACTUATOR.
GB2433174A (en) * 2005-12-07 2007-06-13 New Transducers Ltd Exciter for a bending wave distributed mode loudspeaker
GB2434851A (en) * 2006-02-03 2007-08-08 Pbt A vibration resistant release mechanism
CN102342014B (en) * 2009-04-17 2014-05-07 阿尔卑斯电气株式会社 Actuator element and input device
CN101908815B (en) * 2009-06-02 2015-04-08 易音特电子株式会社 Dual mode vibrator
FR2968361B1 (en) * 2010-12-06 2014-11-21 Arveni MECHANICAL DEVICE FOR APPLYING A MECHANICAL IMPULSE
KR101640445B1 (en) * 2014-10-01 2016-07-18 주식회사 엠플러스 Vibrator
FR3069739B1 (en) * 2017-07-27 2019-08-30 Centre National De La Recherche Scientifique MOTION AMPLIFIER ACTUATING DEVICE

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1951219U (en) * 1965-01-28 1966-12-08 Siemens Ag PIEZOELECTRIC RELAY.
US3614485A (en) * 1969-08-05 1971-10-19 Austron Inc Electromechanical reed system
JPS51114051A (en) * 1975-03-31 1976-10-07 Noto Denshi Kogyo Kk Tuning fork vibrator
US4112279A (en) * 1977-09-02 1978-09-05 Bell Telephone Laboratories, Incorporated Piezoelectric relay construction
US4742260A (en) * 1986-02-06 1988-05-03 Hiroshi Shimizu Piezoelectrically driving device
EP0262637B1 (en) * 1986-09-29 1995-03-22 Mitsubishi Chemical Corporation Piezoelectric actuator
JP3030574B2 (en) * 1990-08-16 2000-04-10 キヤノン株式会社 Micro-displacement information detecting probe element, scanning tunnel microscope, atomic force microscope, and information processing apparatus using the same
DE4337265C1 (en) * 1993-11-02 1995-03-09 Mayer Textilmaschf Warp-knitting machine with at least one guide bar
US5689380A (en) * 1994-02-23 1997-11-18 Aura Systems, Inc. Thin film actuated mirror array for providing double tilt angle
JPH08129875A (en) * 1994-10-28 1996-05-21 Hewlett Packard Co <Hp> Probe device with reduced dislocation of conductive needle
JP3157840B2 (en) * 1996-03-13 2001-04-16 インターナシヨナル・ビジネス・マシーンズ・コーポレーシヨン New cantilever structure
JPH1064400A (en) * 1996-08-19 1998-03-06 Nippon Avionics Co Ltd Relay

Also Published As

Publication number Publication date
US6323581B1 (en) 2001-11-27
ES2212275T3 (en) 2004-07-16
DE69820420D1 (en) 2004-01-22
EP0965147B1 (en) 2003-12-10
AU724314B2 (en) 2000-09-14
JP3204398B2 (en) 2001-09-04
CA2283475C (en) 2006-08-15
GB9704769D0 (en) 1997-04-23
CN1223019C (en) 2005-10-12
WO1998040917A1 (en) 1998-09-17
CA2283475A1 (en) 1998-09-17
HK1026511A1 (en) 2000-12-15
AU6506398A (en) 1998-09-29
CN1255240A (en) 2000-05-31
JP2000509919A (en) 2000-08-02
DE69820420T2 (en) 2004-10-14
EP0965147A1 (en) 1999-12-22
KR20000076028A (en) 2000-12-26
KR100614854B1 (en) 2006-08-25
NZ337621A (en) 2000-05-26

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Legal Events

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RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties